<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
</head>
<body>
<form action="${pageContext.request.contextPath}/Book/upload" enctype="multipart/form-data" method="post">
   上传文件：<input name="file" type="file"><br>
    <input type="submit" value="upload">
</form>
</body>
</html>
